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參數(shù)資料
| 型號： | LTC1159IS-3.3 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 0.05 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 288K |
| 代理商： | LTC1159IS-3.3 |
5
LTC1159
LTC1159-3.3/LTC1159-5
PI FU
V
IN
:
Main Supply Input Pin.
SGND:
Small-Signal Ground. Must be routed separately
from other grounds to the (–) terminal of C
OUT
.
PGND:
Driver Power Grounds. Connect to source of N-
channel MOSFET and the (–) terminal of C
IN
.
V
CC
:
Outputs of internal 4.5V linear regulator, EXTV
CC
switch, and supply inputs for driver and control circuits.
The driver and control circuits are powered from the higher
of the 4.5V regulator or EXTV
CC
voltage. Must be closely
decoupled to power ground.
C
T
:
External capacitor C
T
from this pin to ground sets the
operating frequency. (The frequency is also dependent on
the ratio V
OUT
/V
IN
.)
I
TH
:
Gain Amplifier Decoupling Point. The current com-
parator threshold increases with the I
TH
pin voltage.
V
FB
:
For the LTC1159 adjustable version, the V
FB
pin
receives the feedback voltage from an external resistive
divider used to set the output voltage.
SENSE
–
:
Connects to internal resistive divider which sets
the output voltage in fixed output versions. The SENSE
–
pin
is also the (–) input of the current comparator.
U
SENSE
+
:
The (+) Input for the Current Comparator. A built-
in offset between the SENSE
+
and SENSE
–
pins, in conjunc-
tion with R
SENSE
, sets the current trip threshold.
N-Gate:
High Current Drive for the Bottom N-Channel
MOSFET. The N-Gate pin swings from ground to V
CC
.
P-Gate:
Level-Shifted Gate Drive Signal for the Top
P-Channel MOSFET. The voltage swing at the P-gate pin is
from V
IN
to V
IN
– V
CC
.
P-Drive:
High Current Gate Drive for the Top P-Channel
MOSFET. The P-drive pin(s) swing(s) from V
CC
to ground.
CAP:
Charge Compensation Pin. A capacitor to V
CC
pro-
vides charge required by the P-gate level-shift capacitor
during supply transitions. The charge compensation ca-
pacitor must be larger than the gate drive capacitor
SHDN1:
This pin shuts down the control circuitry only (V
CC
is not affected). Taking SHDN1 pin high turns off the
control circuitry and holds both MOSFETs off. This pin
must be at ground potential for normal operation.
SHDN2:
Master Shutdown Pin. Taking SHDN2 high shuts
down V
CC
and all control circuitry.
EXTV
CC
Switch Drop
Current Sense Threshold Voltage
Off-Time vs V
OUT
SWITCH CURRENT (mA)
0
0
E
C
C
100
200
300
400
500
600
5
10
15
20
LTC1159 TPC07
OUTPUT VOLTAGE (V)
1
O
μ
s
40
50
60
5
LTC1159 TPC08
30
20
0
2
3
4
10
80
70
0
LTC1159-5
LTC1159-3.3
TEMPERATURE (
°
C)
20
S
80
100
120
100
LTC1159 TPC09
60
40
0
40
60
80
20
160
140
0
MAXIMUM
THRESHOLD
MINIMUM
THRESHOLD
TYPICAL PERFOR U
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| LTC1159IS-5 | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1159IS-5#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1159IS-5#TR | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1159IS-5#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1160CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
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